1.

Find the surface area of sphere where volume of sphere is 606.375 m3.1. 324.5 m22. 344.5 m23. 346.5 m24. 348.5 m2

Answer» Correct Answer - Option 3 : 346.5 m2

Given:

Volume of sphere = 606.375 m3.

Formula used:

Surface area of sphere = 4πr2

Volume of sphere = (4/3)π × r3

Calculation:

Volume of sphere = (4/3)πr3

⇒  (4/3)πr3 = 606.375 m3 

⇒ (4/3)(22/7) × r3 = 606.375 m3

⇒ r3 = (606.375 × 7 × 3)/(22 × 4) 

⇒ r3 = 144.703125

⇒ r = 5.25 m

Surface area of sphere = 4πr2

⇒ Surface area of sphere = 4 × (22/7) × (5.25)2

⇒ (4 × 22 × 5.25 × 5.25)/7

⇒ (2425.5)/7

⇒ 346.5 m2

∴ The surface area of sphere is 346.5 m2.



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